Improvement in chubns



M. W. KILGOFH.-A

' Churn.

Patented v Nov; 19, 1867.

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M. W. KILGORE, OF BALTIMORE, MARY-LAND. Latas Patent No. 71,182., earedNovember 19, 1867.

IMPROVEMENT IN enters.

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TO ALL WHOM IT MAY CONCERN:

Be it known that I, M. W. KILGORE, of the city of Baltimore, county ofBaltimore, and State of' Maryland, have invented certain new and usefulImprovements in Churns, which I term the Iron Monitor Ohurn; and I dohereby declare that thegfollowing is a full, clear, and exactdescription of the same, reference being had to the l annexed drawings,and to the letters of reference marked thereon, making part of thisspecification, in which- Figure ll is a longitudinal sectional view onthe line y y.

Figure 2 is a transverse sectional view on the line a: x.

Figure 3 is a top view, and v Figure 4 is an end view, showing thegearing mechanism byl which the dasher is operated.

Thenature of m invention consists in constructin the entire churn ofcast or wrouvlit iron alvanized.

Y a f g The great advantages resulting from the substitution of nieta-lfor wood, which is now universally used, will readily oceurto any onewho is practically acquainted with the construction and operation of thechurns now in the market. l

Of the advantages resulting from the substitution of metal for wood, thefollowing may be mentioned as l among the most prominent: Its greatdurability; the facility with which the churn can be cleaned of allimpurities; the impossibility, from the very nature of the materialused, for the churn to become musty, thus insuring a pure article ofbutter instead ofthe sour and fetid article often met with, 'which notonly smells disagreeably, but also has a stale, ill flavor, and which isattributable to the fact that the churn was not pure, but mustyandimpure, in which the butter had been made. i I

It is hardly necessary to enumerate the disadvantages which areunavoidably associated with the use of the wooden churn. All who arefamiliar, no matter how slight the experience may be, with the dutiesand labors of the dairy, know how diiicult it is to keep clean and purethe ordinary churn.v No matter how great 'the degree of care, they willsoon become offensive, which renders them entirely valueless for furtheruse, for butter di' 'a sweet and pleasant flavor cannot be made in achurn that is musty or mouldy, for it will of necessity' impart to thebutter a strong and rancid scent and taste. And again it is almostimpossible properly to clean a wooden churn, even when the same is newand but little used, for after the churn is washedf; to dry it, you arecompelled to expose it to the rays of the sun, and in consequence of thenatural tendency of the wood to warp when so exposed, you are obliged toremove the churn before it is thoroughly dried; and thus, at the verycommencement of its use, you lay the foundation for that musty conditionwhich will sooner or later render it worthless.

Another most important feature ofmy invention consists inthe novel andpractical method of constructing the dasher, which is as follows: To ahorizontal cylinder or rod I attach a number of paddles or blades. Theedge of these paddles or blades is serrated. The great advantage of thisis, that as the series is revolved brisk-ly through the mass of cream,it will destroy all the globules and completely separate all theparticles of the cream, thus, as it were, cutting it, and not simplyslapping and moving the body of cream from side to side, as is the casewith the ordinary blade and fan nowgin general use. With a dasherconstructed on my plan, it only requires one minute to make goed butter.The blades or paddles may be secured to the cylinder orrod in the mannershown, or in any other convenient manner. They maybe arranged eitherstraight across the cylinder or rod, or diagonally, or in'any directiondesired; and they may be either Hat, curved, or of any otherl form.

My invention also consists in inserting, through a suitable opening inthe top of the churn, a pipe. This pipe extends a short distance abovethe top, and' is provided with funnel-shaped mouth, which admits theair, and which is conveyed by the pipe down through the cream to thelower portion of the churn, and is there introduced at the bottom oftheentire mass, and insures a continuous supply of fresh oxygen during theentire operation, which preventsthe milk from becoming too much heatedwhile being churned. y

To enable others skilled in the art to make and use my invention, Iwillproceed to describe its construction and operation. ,Y

A is the case or box of the churn, the ends and sides of which arestraight, and constructed in the usual manner. The bottom F of the box Ais of a curved or cylindrical form. The box A is firmly secured to thebase-frame Af. C is a hollow horizontal cylinder. c e are a series ofblades or paddles, which extend radially from the `cylinder C'. Theedges of these blades or paddles c c are serrated, as clearly shown iniigs. 1 and 2.

C is a cylinder-shaft, which passes through the cylinder C, and towhiehthe cylinder is firmly attached. E is a thumb-screw, which works in afemale screw, I, arranged in the-side of the box A. This 'screw E has ahollow head, l1, which furnishes the bearing for one .end of the shaftC. 'lhe shaft C extends through the opposite Bide of the box A, having asuitable bearing in said side. wheel, g, is firmly bolted. To one end ofthe box A there is permanentlysecurecl the clamp-plate H. On the centreof this plate H there is a stud or pin, h,fon which revolves the maindriving-wheel G.' The teeth of the spur-gear wheel g engage with or meshinto an internal or rein gear, which isformed on the-inner face of; thedriving-wheel G.' D is the top of the box A. To the top D there areattached two short escape pipes, d d. These pipes d d afford a free exitfor the air that becomes heated and impure during the operation ofchurning. In a suitable opening in the top D, there is secured a pipe,B. This pipe extends a short distance above the top, and down nearly tothe bottom F of the churn. The pipe'B supplies the entire mass of milkwith a continuous stream of fresh air, the airl entering the pipe B bymeans of its funnel-shaped mouth, and being discharged at a point whichis nearly under the entire body of milk at the side opening b. In thetop D there 4is a centre opening, cl.` Around this opening, thereiis a.projecting iiange, in which is fitted a glass, j. By means of this glassjthe operator is enabled to observe theentre process of churning. In anopening` in the lower end of the box there is secured a discharge pipe,e, by means of which the buttermilk can b drawn off as occasionrequires. This pipeis closed by means ofa cork or plug,.z'. A smallplate,l, isarranged immediately in front of the shaftopening in the sideof the box A, in order to prevent the cream from being ejected throughsaid opening. e

The operation is as follows: Power is applied to the handle lc, whichcommunicates motion to the main drivingwheel G, thence to the spur-wheelg, which turns the crank-shaft C', which causes the dasher to revolve.The diameter of the driving-wheel G being so much greater than that ofthespur-wheel g, enables me to acquire great speed, which, being appliedtothe dasher, causes the same to revolve tvith immense rapidity. In therapid revolution of the dasher, the serrated blades or paddles cut theglobules andseparate all the particles of the cream and to the entiremass insures the n iost perfect and complete agitation'. By means of thepipe a continuous current of fresh air is supplied to the churn, which,entering near the bottom, ascends through the cream, permeatingtheentire mass.y I

i It will be observed that I have represented the serrated paddles orblades of the dasheras hat, and have only shown one method of attachingthe same; but it will readily occur to any one skilled in such mattersthat they may be madeof different forms and attached in various Ways. Ido not desire to be understood as limiting myself to any speeifc'form ofblade orzpa-ddle, nor to' any specific method. of arranging or securingthe same.

Having thus fully described my invention, what I claim therein as new,and desire to secure by Letters Patent, is Y V A churn, each and everyfeature of whichbeing niade of galvanized iron, substantially asdescribed and for the purpose specified. i p

2. Constructing the blades or paddles of the dasher with their edgesserrated, substantially as described and for the purpose set forth. Y iV 3. So arranging the pipe B entirely independent of the dasher, that acontinuous current of air is fed to the cream, and introduced at a pointwhich is near the bottom of the churn. substantially'as described andfor the purpose specified.

4. Thecombination ofthe pipes B and d d', when the same are'arrangedsubstantially as'described. In testimony whereof I have signed my nameto this specification in the presence of two subscribing witnesses. M.W. KILGORE.

Witnesses:

W. H. "Masson, Gso. K. VsAzar.

To the projecting end of the shaft C a spur-gear

